Descriptors | Energy supply systems (buildings), Farms, Gas supply, Water supply and waste systems (buildings), Storage, Effluents (sewage), Agricultural facilities, Structures, Waste disposal (buildings), Compressed air, Structural design, Electric power systems, Flues, Liquid fuels, Buildings, Chimneys, Drainage, Installation, Fuels, Water supply (buildings), Water storage cisterns, Building services, Design, Electric power distribution |